Loom



Nov. 4 1924.

1,513,908 F. G. HULME LOOM Filed Oct. 20, 1922 2 Sheets-Sheet 1 Mill" o u o o o o O O U 0 0 NVENTOR A T omvmps Not 4 1924; 1,513,908 F.. G. HULME LOOM Filed Oct. 20, 1922 2 Sheets-Sheet 2 QE IMI iii? INVENTOR A T ORNE ,s v

Patented Nov. 4, 19241..

UNETED STATES P AT E T FREDERIC G. HULME,

0F GERMANTO'WN, LENNSYLVANIA, ASSIG-NOB. T0 FLETCHER PENNSYLVANIA.

LOOM.

Application filed October 20, 1922. Serial No. 595,786.

To all whom it may concern:

Be it known that I, FREDnRIo Gr. HU'LME, a citizen of the United States, and a resident of Germantown, county and city of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Looms, of which the following is a specification.

My invention relates to an improvement in loo-ms and an object thereof is the provision of mechanism for driving the shuttles whereby a more effective and positive movement of the shuttles is obtained than possible in the ordinary loom as now constructed.

In the accompanying drawings, I have illustrated an embodiment of my invention, Figure 1 showing one end of a loom with my invention applied thereto.

Figure 2 is a plan view of the mechanism of Figure 1.

Figure 3 is a sectional view taken substantially on line 3-3 of Figure 1.

Referring to the drawings in detail, numeral 1 designates a batten beam which is adapted to be actuated in the usual inanner. Numerals 2 and 3 designate shuttlei-ack rails in which the shuttle-racks 4:, 5, 6, and 7 are adapted to be reciprocated. These shuttle-racks as will be understood are to be connected in a well known mannor by pinions to the shuttles, which are not shown in the accompanying drawings.

The shuttle-racks are reciprocated by mechanism best seen in Figures 1 and 2, this mechanism comprising a series of pickerplates 8, 9, and 10, 11 directly connected to the shuttle-racks already referred to and mounted on and carried by horizontally ex tending guide rods 12, 13, 14:, and 15, respectively.

,The necessary vertical movement of the shuttle-racks and picker-plates is controlled in the usual manner by the pattern, and inasmuch as this part of the apparatus forms no part of the present invention the same has not been illustrated.

In connection with the shuttle-"racks and picker-plates I provide a pair of slides 16 and. 1-7 which are mounted on rails 18- and 19, respectively, is guided. The slide 16 is attached to one end of a chain 20, while the slide 17 is attached to the other end of. said chain. This chainis Iimu 'ilt d' on sprockets 21 and 22.

by which their movementv The shaft carrying the sprocket 22 also carries sprocket 23. (lo-operating with the sprocket 23 is a sprocket 23. These two sprockets 23 and 23 carry a chain 24L. The shaft carrying the sprocket 23 also carries a sprocket 25, which receives a sprocket chain 25.

The chain 25 is driven by suitable driving mechanism not shown, as for instance, from a crank, to cause the chain 20 through the sprockets and chains just referred to to be recip-rocated, so as to reciprocate the slides 16 and 17. The movement of the slides 16 and 17 may be varied if desired, and is limited by stops 26, 27, 28 and 29.

The slides 16 and 17 are duplicates of each other. Referring to- Figure 2 particularly, it will be seen that the slide 16 is provided with a pick-up arm 30 adapted to be forced towards the plates 8, 9, 10 and 11, that is to say, forced transversely of the path of movement of the slide and plates by spring 31 which is carried by the slide itself. This pick-up arm is provided with an enlarged head 32 at its inner end, this head being adapted to be received by a recess 33 provided in the face of each of the plates 8, 9, 10 and 11.

The face of the plates 8, 9, 10 and 11 adjacent the slides 16 and 17 is provided with cam or beveled portions 35 and 36, these beveled faces constituting cam mechanism adapted to co-operate with the pick-up arm 30 to cause the arm to be retracted as the same moves over the face of the pickerplates 8, 9, 10 and 11.

From the description thus far given it will be understood that as the loom is operated the picker-plates 8, 9, 10 and 11 will be raised in a predetermined order and in synchronism with the reciprocation of the slides 16 and 17. In other words, if it is desired to actuate the picker-plate 8, that is to say reciprocate it, the plate will be raised when the slide 16 is in the position shown in Figure 2;, to cause the recess 33 to receive the head 32 of. the pickup arm 30,- with the result that as slide 16 starts its movement to the left as viewedv in Figure 2 thearm 30 will move laterally to carry the picker-plate 8-a1ong with it. At this time the slide 17 may be standing idle and as it reaches the position to the right of Figure 1, that is to say after the pickerplate 8 movedo e e he" p cker a m ca d iii-ll by the slide 17 will ride over the cam face of the picker-plate 9 for example, so that upon the reversed motion of the slide 17, the picker-plate 9 will remain in its right-hand position instead of being actuated. In other words, I have here provided a mechanism for insuring a positive drive of any desired picker plate, the plate 18 for example while permitting the other pick-up arm, the arm carried by the slide 17 for example, to move across the face of the other picker-plates the plate 9 for example without however actuating the latter.

As a positive lock for the picker-plates I provide at or adjacent each end of the stroke of the slides 16 and 17, a pair of locking members or arms 37 and 38. These arms are rigidly secured to the loom structure and are in position to be received by the recess 33 in the picker plates as the latter are raised and lowered. In other words, assuming again for example that the pickerplate 8 is to be reciprooated, in this event the picker-plate 8 would be raised so as to be picked up by the slide 16 in the manner above described. At the same time, however, the picker-plates 9, 10 and 11 would have been dropped over the locking arm 38 to be thereby held against movement.

If on the other hand the picker-plate 10 were to be actuated, the picker-plates 8, 9

and 11 would have been raised to a position to receive arm 37 and picker-plate 10 would have received arm 38, so that the plates 8, 9 and 11 would be held against movement,

, the picker-plate 9, however, being free to be moved either by the slide 16 or 17 as the case may be.

It will be seen therefore that I have provided a loom wherein the picker-plates 8, 9, 10 and 11 are positively driven by the slides 16 and 17, these slides carrying pick up arms adapted to be received by the picker-plates in such a manner that as the slides 16 and 17 are positively reciprocated the picker-plates 8, 9, 10 and 11 may be reciprocated also.

It will be seen also that the connection between the slides 16 and 17 and the pickerplates 8, 9, 10 and 11 is such as to enable the slides to be reciprocated without imparting motion to the picker-plates if it be so desired.

It will be apparent furthermore that I have provided means for preventing accidental movement of the picker-plates, this means comprising the locking arms 37 and 38, which as above pointed out co-operate with the recesses'33 in the face of each picker-plate.' This arrangement prevents operation or reciprocation when not desired of the picker plates by the slide 16 or the slide 17, it being understood that when a slide moves across the face of a picker plate the pickup arm rid s across the cam. fa e of the picker plate and, while it does not enter the recess 33 in the picker plate unless some positive locking means were provided, there might be sufiicient friction between the pick-up arm and the picker plate to cause the same to be reciprocated.

I claim 1. In a loom, the combination of a shuttle rack, a picker-plate operatively connected thereto, a slide, means for reciprocating said slide, and a pick-up arm carried by said slide and movable transversely of the direction of motion of said slide to engage'said pickerplate to postively drive the same, and means for positively locking said picker plate when the same is in inoperative position.

- 2. In a loom, the combination of a pickerplate, a slide, a pick-up arm carried by said slide and having movement relatively thereto transversely thereof, said picker-plate being provided with a recess for receiving one end of said pick-up arm to establish a positive driving connection between said slide and picker-plate, and means for positive-1y locking the picker-plate when the same is in inoperative position.

3. In a loom, the combination of a pickerplate, a slide, a pick-up arm carriedv by said slide and yieldingly mounted therein, said picker-plate being provided with a recess adapted to receive one end of said pick-up arm to establish a positive driving connection between the slide and picker-plate, a cam face on said picker-plate adapted to cooperate with said pick-up arm to force the same rearwardly to prevent the establishment of a driving connection between the slide and picker-plate, and means for positively locking the picker plate when the same is in inoperative position.

4. In a loom, the combination of a plurality .of picker-plates, a slide adapted to positively drive said picker-plates, and means at each end of the limit of travel of the slide for positively locking the pickerplates upon disengagement from said slide. 5. In a loom, the combination of a plurality of picker-plates, a slide, a pick-up arm carried by said slide, means for connecting said arm to anyone of said picker-plates, to establish a positive driving connection between the slide and plate, and means for locking the other of said picker-plates while the picker-plate connected to the slide is being actuated.

6. In a loom, the combination of a pickerplate, a slide, means carried by said slide and adapted to co-operate with a recess in the picker-plate to establish a positive driving connection between the picker-plate and slide, and a lock for the picker-plate adapt ed to co-operate with said recess in said plate to lock the picker-plate upon its disengagement from said slide.

7, In 2 100111, he combination of a pickerplate, a chain, a slide attached to said chain and adapted to be reciprocated thereby, a pick-up arm attached to said slide and provided with an enlarged end or head adapted to co-operate with the recess in the face of said picker-plate to establish a positive driving connection between said slide and pickerplate, and a lock at each end of the path of travel of said picker-plate for locking said picker-plate upon its disengagement from said slide.

8. In a loom, the combination of a plurality of picker-plates, means for raising and lowering said plates in a predetermined order, a reciprocatory slide, a pick-up arm carried by said slide and adapted to be received by a recess formed in the adjacent face of each of said picker-plates as the pickerplates are moved vertically into driving position, each of said picker-plates being provided with a cam face adapted to co-operate With said pick-up arm to prevent the reception of the pick-up arm by a picker-plate, and locking means for locking the pickerplates upon their disengagement from said pick-11p arm.

This specification signed this 18th day of October 1922.

FREDERIC G. HULME. 

